Chetan Electric Pvt. Ltd. manufactures custom-engineered Dry Type Transformers designed specifically for indoor installations where fire safety, environmental cleanliness, and operational reliability are paramount. Manufactured and stringently tested in full compliance with IS 2026, IS 11171, and IEC 60076-11, our dry-type units utilize advanced Vacuum Pressure Impregnation (VPI) resin systems.
Built with Class F (155°C) thermal insulation, our dry transformers are designed to maintain standard operating performance with a controlled temperature rise of up to 90°C in windings under rated loads. Starting from 25 KVA up to 5000 KVA (11kV rating), Chetan Electric provides custom tap settings, robust enclosures, and optional digital monitoring modules engineered for global industrial procurement standards.
Designed for rigorous industrial operation, every unit undergoes comprehensive routine testing at our Bangalore facility before dispatch.
| Parameter / Specification | Standard Configuration Details |
|---|---|
| Power Capacity Range | 25 KVA to 5000 KVA (Custom capacities built on request) |
| Voltage Class | Up to 11kV (High Voltage Side) / 415V - 433V (Low Voltage Side) |
| Design & Testing Standards | IS 2026, IS 11171, IEC 60076-11 (Type-tested at CPRI Bangalore) |
| Insulation System | Class F Insulation (155°C rating) / Class H Insulation optional |
| Winding Temperature Rise | Designed for 90°C rise over maximum ambient thermal rating |
| Core & Winding Material | High-grade CRGO (Cold Rolled Grain Oriented) silicon steel & Electrolytic Copper / Aluminum |
| Cooling Method | Air Natural (AN) / Forced Air Cooling (AF) with digital fan controls |
| Tapping Arrangements | Off-Circuit Tap Links in steps of ±2.5% to ±5% / Optional OLTC with RTCC & AVR |
| Enclosure Protection Class | IP21 (Standard Indoor), IP23, or IP33 ventilated metallic protective housing |
Eliminates oil leakage and explosion risks. VPI varnish impregnation renders the transformer self-extinguishing, making it ideal for fire-sensitive environments.
Engineered to handle harsh thermal cycles with high short-circuit capability and superior mechanical strength under heavy industrial loads.
No oil testing, filtration, or seal replacement required. Simple periodic visual inspection and dust clearing ensure decades of continuous operation.
Equipped with off-circuit tap links in steps of 2.5%. Can be outfitted with On-Load Tap Changers (OLTC), Remote Tap Changer Cubicles (RTCC), and Automatic Voltage Relays (AVR).
Optional Winding Temperature Indicators (WTI) with RS485 digital output for seamless integration with plant SCADA and building management systems (BMS).
Zero risk of soil or groundwater contamination. Compact physical footprint allows installation closer to load centers, lowering cable transmission losses.
Exploration of specialized dry-type enclosures, coil configurations, and protective housings produced at our ISO 9001 certified plant.
Speak with our senior transformer design engineers to configure custom voltage ratings, tap steps, enclosure IP levels, and CPRI test documentation for your global procurement requirements.
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